Feasibility of endoscopic papillary large balloon dilation to remove difficult stones in patients with nondilated distal bile ducts

Table 1 The primary features and endoscopic biliary large balloon dilation outcomes of dilated and nondilated distal bile duct patients

	Non-dilated DD (n = 113)	Dilated DD (n = 78)	P value
Mean age (SD)	52 ± 8	68 ± 11	< 0.001
Female/Male	75/38	47/31	0.387
Number of MBD stones (SD)	2 ± 0.7	4.1 ± 2.9	< 0.001
Biggest MBD stone size (SD)	1.1 ± 0.1	1.7 ± 0.2	< 0.001
Additional ML	28 (25%)	5 (6.4%)	0.001

ML: Mechanical lithotripsy; DD: Distal bile duct; MBD: Main bile duct.

Table 2 The complications of dilated and nondilated distal bile duct patients who received endoscopic biliary large balloon dilation

	Non-dilated DD (n = 113)	Dilated DD (n = 78)
Complication rate, n (%)	8 (7.1)	5 (6.4)
Post-ERCP pancreatitis	3	2
Overt bleeding	3	2
Perforations	2	-
Cholangitis	-	1
Death	-	-

ERCP: Endoscopic retrograde cholangiopancreatography; DD: Distal bile duct.